Security researcher, pwning in HypeBoy, KAIST GoN

Joined November 2016
5 Photos and videos
stan retweeted
25 Sep 2025
Bad auditors miss obvious bugs. We built an AI tool that finds them. Introducing V12: the only autonomous Solidity auditor that actually finds Highs and Criticals. We'll be releasing it for free. V12 finds Crits in Zellic audits, High/Mediums in Cantina, and a bug in Pendle.
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stan retweeted
17 Jun 2025
Code4rena will run audit contests for free, as public goods. 100% of funds from sponsors will go directly to auditors and judges. We won't take any cut. Why? 1. Competitions are commodities. They're CRUD apps. Why should builders pay premium for a website just to submit bugs? Especially smaller teams without VC funding. 2. Everyone deserves competitions. We tell all our clients to get a competition after their audit. That's because competitions simulate real world conditions, where there's thousands of eyes on a protocol. We want to make competitions as affordable as possible so everyone can get one. 3. It benefits our wardens. In 2021, we invented the competition format. We're still the platform with the largest auditor pool (10,000 registered). Not only should builders have access to the best security talent, we believe auditors should have opportunities to work with great projects. Opening up our platform benefits our wardens. How will you afford this? Zellic is a profitable business. We make money doing traditional private audits through Zellic and Zenith. This benefits us because: (1) our clients are more secure after they run contests, and (2) Code4rena is a talent pipeline for Zenith. Will you stop maintaining the platform? Of course not. Since we acquired Code4rena, we've shipped several features and have several more already underway. C4 has a dedicated dev team that we're fully committed to. Besides, many of our clients at Zellic use C4. We're incentivized to make sure the platform works well. It's just that now we're allowing everyone to benefit from our investments in Code4rena. In conclusion: Run a contest on Code4rena! We won't take a cut, your prizes will go directly to wardens and judges. For full details, check out our blog post here: zellic.io/blog/code4rena-fre…
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stan retweeted
18 Feb 2025
Zellic is proud to serve as a whitelisted security provider joining the @UniswapFND Security Fund! We're excited to provide support for the teams building on Uniswap v4 to help them launch secure, innovative projects.
🎊 We're thrilled to announce the 16 security providers joining the Uniswap Foundation Security Fund! These leading firms join @areta_io's marketplace to provide high-quality audits for Uniswap builders, with costs subsidized by the UFSF. Learn more ↓ uniswapfoundation.mirror.xyz…
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stan retweeted
10 Jan 2025
Just completed my 10th audit as a contractor @zellic_io and these are my top favourite things about this place: 1. They have a diverse and deep talent pool. World top Web security, Cosmos, Rust, Golang, MOVE. They have experts in every direction I want to move into (pun definitely unintended). 2. I still get to be independent, get my own clients, work with other teams. This keeps me fresh, accountable, and at the top of my game. 3. Every time I have asked for a specific type of contract, it magically shows up in my schedule. These past 4 months I've done countless bridges (EVM, OP, Cosmos), Client implementations in rust, governance, staking, etc. Keen to see what they throw at me next!
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13 Aug 2024
Finally figured out why I've never won a slot game during DEFCON..
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stan retweeted
Ethereum watching Bitcoiners build L2s
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stan retweeted
14 Apr 2024
We HypeBoy topped Plaid CTF 2024! πŸ‘‘ @_Reinose_en @justlikebono @munsiwoo @real_as3617 @mhibio_ptw @howdays1 @stanzz @soo_sudo @n1net4il @1nteger_c @c2w2m2 @pr0cf51 @cmy981224 @csapp3e ironore15 G0RiYa Thanks to the great support from dakuo & hellsonic
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stan retweeted
Boom! Seunghyun Lee (@0x10n) of KAIST Hacking Lab was able to successfully demonstrate his exploit of #Google Chrome. He's off to the disclosure call to provide us all the details before we bring in the Google team for disclosure. #Pwn2Own #P2OVancouver
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stan retweeted
11 Dec 2023
Apparently, you can now embed any image (or GIF) in your Steam nickname and it’ll show up in the CS2 kick voting menu πŸ”₯ After a few tries, our admin was able to use some random GIF with @s1mpleO as his nickname πŸ˜­πŸ’€
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stan retweeted
13 Oct 2023
[POC2023] - SPEAKER UPDATE1⃣2️⃣ πŸ’β€β™‚οΈ @c0m0r1, @Xion One shot, Triple kill: Pwning all three Google kernelCTF instances with a single 1-day Linux vulnerability #POC2023
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23 Aug 2023
D-1 til Codegate 2023 Finals :) I'll be there as an author/organizer, see you guys and good luck.
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stan retweeted
So, codegate finals start in 16 hours, but our reverser got sick πŸ˜… Anyone in Seoul or close by wanna join us? (0rganizers) :p
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19 Aug 2023
😏
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14 Aug 2023
μƒλŒ€μ μœΌλ‘œ 적은 수의 νŒ€μ›μ—λ„ λΆˆκ΅¬ν•˜κ³  쒋은 νŒ€μ›Œν¬μ™€ κΈ°λŸ‰μœΌλ‘œ 높은 λ“±μˆ˜λ₯Ό κ±°λ‘˜ 수 μžˆμ—ˆλ˜ 것 κ°™μŠ΅λ‹ˆλ‹€. λ¦¬νƒ€μ΄μ–΄λ˜λŠ” λ¬Έμ œκ°€ μ—†μ–΄ 1인 1λ¬Έμ œμ— κ°€κΉŒμ›Œ 질수둝 점점 μ–΄μ§€λŸ¬μ›Œ 쑌던 것 κ°™λ„€μš”.. 비행기와 μˆ™λ°• 및 식비 λ“± λŒ€νšŒμ—λ§Œ 집쀑할 수 μžˆλ„λ‘ 큰 도움 μ£Όμ‹  λΆ„λ“€κ»˜ κ°μ‚¬λ“œλ¦¬κ³  μ‹ΆμŠ΅λ‹ˆλ‹€.
14 Aug 2023
λ°ν”„μ½˜ 본선을 4μœ„λ‘œ λ§ˆλ¬΄λ¦¬ν–ˆμŠ΅λ‹ˆλ‹€. 14λͺ…μ˜ ν•œκ΅­μΈμ΄ λͺ¨μ—¬ λ§Œλ“  λ‚­λ§Œμ€ 내년에도 κ³„μ†λ©λ‹ˆλ‹€. πŸ˜† HypeBoy got 4th place in #DEFCON πŸ₯³ Keep your eyes on 14 koreans :))) youtu.be/11cta61wi0g
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6 Aug 2023
On the way to Las Vegas, see you guys at DEFCON!
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The new security patch in Django was disclosed on July 3rd, 2023 πŸš€ (CVE-2023-36053) This was reported by ME πŸ”₯ And thanks to Django Security Team for kind reception and professional patch. djangoproject.com/weblog/202…
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stan retweeted
12 Jul 2023
Two teams (The Goose and NoG) from KAIST got 1st and 4th place from CCE! Congrats!
12 Jul 2023
πŸ˜‹
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stan retweeted
12 Jul 2023
Replying to @diff72840089
@diff72840089 @stanzz @pr0cf51 μˆ˜κ³ ν•˜μ…¨μŠ΅λ‹ˆλ‹€
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stan retweeted
18 Jun 2023
CODEGATE 2023 is finally over, and we have something to share. Hall of Shame codegate2023.org/hall-of-sha…

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stan retweeted
16 Jun 2023
Codegate CTF 2023 Preliminary is coming!πŸš€πŸš€πŸš€ πŸ’°πŸ’°πŸ’° Total Prizes (for final) : 86M KRW (approx. $67k) CTFTime: ctftime.org/event/2006 Duration: 2023.06.17 10:00 - 2023.06.18 10:00 (UTC 9) Official website: codegate2023.org Discord: discord.gg/8GdTSKshHm
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